﻿// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// Copyright (c) 2011, Dr. Masroor Ehsan
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the author nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// $Author: masroore@gmail.com $
// $Id: DseIntradayQuotesParserSgml.cs 39 2011-10-23 07:44:27Z masroore@gmail.com $
// $Rev: 39 $
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

using System.Collections.Generic;
using System.IO;
using MaxTrader.BusinessObjects;
using MaxTrader.Core.Pipeline;
using MaxTrader.QuotesParser.Core;
using MaxTrader.StockQuotesParser.Pipeline;

namespace MaxTrader.IDQuotesParser.Dse.Sgml
{
    public sealed class DseIntradayQuotesParserSgml : IStockQuotesParser
    {
        private readonly SequentialPipeline _pipeline;
        private readonly List<RawStockQuote> _quotes;

        public DseIntradayQuotesParserSgml()
        {
            _quotes = new List<RawStockQuote>();
            _pipeline = new SequentialPipeline();

            _pipeline.AddStage(new HtmlSanitizationStage());
            _pipeline.AddStage(new SgmlQuotesParsingStage());
            _pipeline.AddStage(new StockQuotesValidationStage());
        }

        #region IStockQuotesParser Members

        public StockQuoteType QuoteType
        {
            get { return StockQuoteType.Intraday; }
        }

        public StockExchange Exchange
        {
            get { return StockExchange.Dse; }
        }

        public string ParserClass
        {
            get { return "DSEBD_INTRADAY"; }
        }

        public string Name
        {
            get { return "Dsebd.org SGML-based Intra-day Stock Quotes Parser"; }
        }

        public float Version
        {
            get { return 0.1f; }
        }

        public IEnumerable<RawStockQuote> Quotes
        {
            get { return _quotes; }
        }

        public bool ParseQuotes(Stream rawData)
        {
            using (var sr = new StreamReader(rawData))
            {
                _quotes.Clear();

                var context = new StockQuotesParserContext(this, sr.ReadToEnd(), false);
                _pipeline.Execute(context);

                if (context.Errors.Count > 0)
                {
                    //TODO: log the errors? exception?
                    return false;
                }

                context.ValidatedQuotes.ForEach(x => _quotes.Add(x));
            }

            return true;
        }

        #endregion
    }
}